Step |
Hyp |
Ref |
Expression |
1 |
|
sadval.a |
|
2 |
|
sadval.b |
|
3 |
|
sadval.c |
|
4 |
|
sadcp1.n |
|
5 |
|
sadcadd.k |
|
6 |
|
2nn |
|
7 |
6
|
a1i |
|
8 |
7 4
|
nnexpcld |
|
9 |
8
|
nnzd |
|
10 |
|
iddvds |
|
11 |
9 10
|
syl |
|
12 |
|
dvds0 |
|
13 |
9 12
|
syl |
|
14 |
|
breq2 |
|
15 |
|
breq2 |
|
16 |
14 15
|
ifboth |
|
17 |
11 13 16
|
syl2anc |
|
18 |
|
inss1 |
|
19 |
1 2 3
|
sadfval |
|
20 |
|
ssrab2 |
|
21 |
19 20
|
eqsstrdi |
|
22 |
18 21
|
sstrid |
|
23 |
|
fzofi |
|
24 |
23
|
a1i |
|
25 |
|
inss2 |
|
26 |
|
ssfi |
|
27 |
24 25 26
|
sylancl |
|
28 |
|
elfpw |
|
29 |
22 27 28
|
sylanbrc |
|
30 |
|
bitsf1o |
|
31 |
|
f1ocnv |
|
32 |
|
f1of |
|
33 |
30 31 32
|
mp2b |
|
34 |
5
|
feq1i |
|
35 |
33 34
|
mpbir |
|
36 |
35
|
ffvelrni |
|
37 |
29 36
|
syl |
|
38 |
37
|
nn0cnd |
|
39 |
8
|
nncnd |
|
40 |
|
0cn |
|
41 |
|
ifcl |
|
42 |
39 40 41
|
sylancl |
|
43 |
38 42
|
pncan2d |
|
44 |
17 43
|
breqtrrd |
|
45 |
37
|
nn0zd |
|
46 |
9
|
adantr |
|
47 |
|
0zd |
|
48 |
46 47
|
ifclda |
|
49 |
45 48
|
zaddcld |
|
50 |
|
moddvds |
|
51 |
8 49 45 50
|
syl3anc |
|
52 |
44 51
|
mpbird |
|
53 |
1 2 3 4 5
|
sadadd2 |
|
54 |
53
|
oveq1d |
|
55 |
52 54
|
eqtr3d |
|